Surf Forecasts:
Lakey Pipe surf forecast from 12 Aug 2026:
- Best quality surf: Tuesday 18 Aug, 5PM (local time) - 7ft (2.2m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Wednesday 19 Aug, 8PM (local time) - 8ft (2.5m), 18s period, SW swell with 4,306 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 8PM (local time) - 6ft (1.9m), 16s period with SSW swell.
Best Forecast Surf Conditions for Lakey Pipe this week:
The surf forecast for Lakey Pipe over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 8PM. The primary swell is predicted to be 1.9m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Lakey Pipe in the next 16 days are 2.5m 18s and forecast to arrive on Wednesday (Aug 19) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Aug 19) at 8PM.
| Wave Type | Time (WITA) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Wed 12th Aug) | 6ft (1.9m) 16s |
| Best Surf | 5PM (Tue 18th Aug) | 7ft (2.2m) 16s |
| Most Powerful | 8PM (Wed 19th Aug) | 8ft (2.5m) 18s |
Table - best surf conditions forecast for Lakey Pipe over the next 16 days.
The Lowdown
Alright, Rusty here again. Let’s break it down in feet and Fahrenheit.
Water temp is about 80°, right on the average for the time of year. Nothing weird there.
We’ve got a consistent run of SSW groundswell hitting Lakey Pipe. Kicking off Wednesday, August 12th, we’re looking at 6ft to 6ft swell with a 14 to 17 second period. That’s long-period groundswell, and it’s going to be ripping on this reef. Combined energy is in the 1900 to 2200 range, so plenty of power. Clean cross-off winds make for excellent, lined-up waves for experienced surfers.
Thursday 13th and Friday 14th stay solid, with light winds and swell hitting 7ft on Thursday afternoon. Saturday 15th is a standout – 6ft to 7ft, 17 second period, glassy conditions, and energy of 2394. Crowds are often here, but for waves this good, it’s a no-brainer.
The run continues through Sunday 16th, Monday 17th, and Tuesday 18th. The swell dips a bit on Monday to 5ft, but Tuesday afternoon brings a punchy 7ft with a 16-second period and energy of 3827. That’s a big jump in power. Wednesday 19th is another standout: 8ft to 8ft of SW swell, 18-second period, and energy near 3900. Winds are still clean. This is top-tier, but getting big.
Now, Thursday 20th August: the swell is 10ft with 16-second periods and energy over 4300. That’s too big for this break, even for experts. The forecast says it’s too big, so sit that one out.
Friday 21st drops to 7ft but the quality is marginal, with moderate winds. Saturday 22nd sees a return to 8ft SW swell, but the wind goes cross-shore, so a little chop. Sunday 23rd and Monday 24th are better, with lighter winds, clean conditions, and 6ft to 7ft.
The final days, from Tuesday 25th through Thursday 27th, show a drop to 5ft, but still clean, rideable waves with gentle winds. The best of the second week is Saturday 22 August, with 8ft of SW swell and energy of 4020, but watch that cross-shore breeze.
The absolute standout of the entire 16 days is Wednesday, 19 August. That’s 8ft of SW swell, 18-second period, clean cross-off winds, and energy of 3869. It’s big, powerful, and perfect. That’s the one.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Fri afternoon, min 22°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 28°C on Sat afternoon, min 23°C on Sat night). Wind will be generally light. | |||||||||||||||||||
Wed 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 14 | SSW 16 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1138 | 768 | 1930 | 2241 | 2219 | 1788 | 1258 | 1087 | 2196 | 2377 | 2110 | 1982 | 1788 | 1356 | 1130 | 934 | 607 | 897 | 2599 | 2084 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | cross-off | cross-off | off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 10:34PM2.43m | 10:21AM3.00m | 11:08PM2.67m | 11:03AM3.06m | 11:39PM2.86m | 11:42AM3.02m | 00:10AM2.97m | 12:17PM2.90m | 00:40AM3.00m | 12:51PM2.71m | 1:09AM2.95m | 1:23PM2.47m | 1:38AM2.82m | |||||||
Low Tide | 4:19PM0.23m | 4:14AM0.76m | 4:55PM0.11m | 4:58AM0.54m | 5:27PM0.07m | 5:38AM0.39m | 5:58PM0.11m | 6:16AM0.33m | 6:27PM0.21m | 6:52AM0.36m | 6:54PM0.37m | 7:27AM0.45m | 7:19PM0.55m | |||||||
 |  |  | |  | | | | | | | | | | | | | |  | | |
 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:15 | — | — | 6:15 | — | — |
 | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 27 | 24 | 26 | 27 | 23 | 27 | 28 | 24 | 27 | 28 | 24 | 27 | 28 | 24 | 27 | 28 | 24 | 28 | 28 | 25 |
Feels °C | 27 | 26 | 28 | 29 | 25 | 29 | 29 | 27 | 29 | 30 | 27 | 29 | 30 | 27 | 29 | 30 | 27 | 30 | 30 | 28 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 17 | SSW 17 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 16 | SSW 16 | SSW 16 |
| kJ | 1138 | 643 | 1930 | 2241 | 2219 | 1788 | 1258 | 1087 | 2196 | 2377 | 2110 | 1982 | 1788 | 1356 | 1130 | 934 | 607 | 897 | 2599 | 2084 |
Swell 2 Height (m) Direction Period (s) | SSW 17 | SSW 16 | — | — | SSW 24 | SSE 7 | SSW 21 | SSW 19 | SSE 5 | SSE 6 | — | — | — | — | — | SSW 20 | SSW 18 | SSW 13 | SW 20 | SW 20 |
| kJ | 771 | 768 | — | — | 54 | 43 | 305 | 774 | 13 | 17 | — | — | — | — | — | 38 | 408 | 577 | 1228 | 881 |
Swell 3 Height (m) Direction Period (s) | E 4 | E 5 | — | — | SSW 24 | SW 22 | — | SSE 6 | — | — | — | — | — | — | — | SW 24 | SW 24 | SW 21 | — | — |
| kJ | 6 | 12 | — | — | 54 | 118 | — | 7 | — | — | — | — | — | — | — | 90 | 141 | 658 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | E 5 | — | — | — | SSE 7 | SSE 4 | — | — | — | — | — | ESE 6 | ESE 5 | E 4 | E 4 | ESE 5 | — | — |
| kJ | — | — | 7 | — | — | — | 35 | 10 | — | — | — | — | — | 20 | 16 | 10 | 11 | 19 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Sumbawa | ||||||||||||||||||||
Best forecast wave conditions in Indonesia | ||||||||||||||||||||
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Information about the Lakey Pipe Surf forecast
The above surf forecast table for Lakey Pipe provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Lakey Pipe can be found by selecting the local surf guide option on the grey menu. Our Lakey Pipe surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Lakey Pipe) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Lakey Pipe may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Sumbawa? If you are looking for accommodation near Lakai Pipe, camping, hotels and holiday cottages in Sumbawa, consider staying in Bima which is 52 km (32 miles) away. Alternatively, find information about places to stay and car hire in Raba which is 56 km (35 miles) away
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